demo vs reflexion

demo and reflexion both are nouns.

Word	Noun	Adjective	Verb	Adverb
demo	Yes	No	Yes	No
reflexion	Yes	No	No	No

As nouns, reflexion is a hyponym of demo; that is, reflexion is a word with a more specific, narrower meaning than demo:

Other hyponyms of demo include display, show, expression, manifestation, reflection, exemplification, illustration.

demo (noun)	reflexion (noun)
a visual presentation showing how something works	the image of something as reflected by a mirror (or other reflective material)
	the ability to reflect beams or rays
	a likeness in which left and right are reversed
	a calm, lengthy, intent consideration
	a remark expressing careful consideration
	expression without words
	the phenomenon of a propagating wave (light or sound) being thrown back from a surface

demo (verb)	reflexion (verb)
give an exhibition of to an interested audience